... mode 4. Large view area Solar Powered Auto Darkening Welding Helmet GCH-A203-3322HApplications TIG welding, MIG welding, arc welding, ... ergonomic structure, comfortable and convenient to use.3). The helmet is made of special nylon,endure extreme temperature,impact resistance ... for delay time, easy to operate.5). Full range of eye and face protection,flow-oriented, effective in reducing the harmful ...